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In 2003, Miller became chair of the HMS Department of Ophthalmology and Henry Willard Williams Professor of Ophthalmology. In 2017, she was promoted to David Glendenning Cogan Professor of Ophthalmology. Miller is the first female ophthalmologist to achieve the rank of Professor at HMS and the first woman to chair the Department of ...
Photodynamic therapy (PDT) is a form of phototherapy involving light and a photosensitizing chemical substance used in conjunction with molecular oxygen to elicit cell death (phototoxicity). [ 1 ] PDT is used in treating acne , wet age-related macular degeneration , psoriasis , and herpes .
The efficacy of antimicrobial photodynamic therapy, using various distinct photosensitizers, has been studied since the 1990s. [ 9 ] [ 7 ] Most studies have yielded positive outcomes, often achieving disinfection levels, as defined by infection control guidelines, exceeding 5 log 10 (99.999%) of microbial inactivation. [ 14 ]
Dental infections tend to also respond better to photothermal therapy than photodynamic therapy, though both have a strong effect. [ 10 ] [ 11 ] [ 12 ] The efficacy of PDT for antimicrobial usage is limited by the properties of the membrane of the target cell such as the electrical gradient ( membrane potential ) and lipid composition.
Though photopharmacology is a relatively new field, the concept of using light in therapeutic applications came into practice a few decades ago. Photodynamic therapy (PDT) is a well-established clinically practiced protocol in which photosensitizers are used to produce singlet oxygen for destroying diseased or damaged cells or tissues. [2]
Photodynamic therapy: PK Penetrating keratoplasy: POAG Primary open-angle glaucoma PPDR Preproliferative diabetic retinopathy PRA Pan-retinal ablation PRK Photorefractive keratectomy PRP Pan-retinal photocoagulation PSCC Posterior sub-capsular cataract PVD Posterior vitreous detachment PXF Pseudoexfoliative syndrome RD Retinal detachment: RK
It is a photosensitiser (activated by 675 nm red light) sometimes used in photodynamic therapy trials. [2] [3] It has been tried on Age-related macular degeneration [4]
A photosensitizer being used in photodynamic therapy. Photosensitizers are light absorbers that alter the course of a photochemical reaction. They usually are catalysts. [1] They can function by many mechanisms, sometimes they donate an electron to the substrate, sometimes they abstract a hydrogen atom from the substrate.